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-rw-r--r--src/glx/x11/indirect_transpose_matrix.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/src/glx/x11/indirect_transpose_matrix.c b/src/glx/x11/indirect_transpose_matrix.c
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+++ b/src/glx/x11/indirect_transpose_matrix.c
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+/*
+ * (C) Copyright IBM Corporation 2004
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <GL/gl.h>
+#include "indirect.h"
+
+static void TransposeMatrixf(const GLfloat s[16], GLfloat d[16])
+{
+ int i, j;
+ for (i = 0; i < 4; i++) {
+ for (j = 0; j < 4; j++) {
+ d[i*4+j] = s[j*4+i];
+ }
+ }
+}
+
+static void TransposeMatrixd(const GLdouble s[16], GLdouble d[16])
+{
+ int i, j;
+ for (i = 0; i < 4; i++) {
+ for (j = 0; j < 4; j++) {
+ d[i*4+j] = s[j*4+i];
+ }
+ }
+}
+
+
+void
+__indirect_glLoadTransposeMatrixdARB( const GLdouble * m )
+{
+ GLdouble mt[16];
+
+ TransposeMatrixd( m, mt );
+ __indirect_glLoadMatrixd( mt );
+}
+
+void
+__indirect_glLoadTransposeMatrixfARB( const GLfloat * m )
+{
+ GLfloat mt[16];
+
+ TransposeMatrixf( m, mt );
+ __indirect_glLoadMatrixf( mt );
+}
+
+void
+__indirect_glMultTransposeMatrixdARB( const GLdouble * m )
+{
+ GLdouble mt[16];
+
+ TransposeMatrixd( m, mt );
+ __indirect_glMultMatrixd( mt );
+}
+
+void
+__indirect_glMultTransposeMatrixfARB( const GLfloat * m )
+{
+ GLfloat mt[16];
+
+ TransposeMatrixf( m, mt );
+ __indirect_glMultMatrixf( mt );
+}